I tried including plugins/ruby into the root Makefile.in, but the problem persists. Tried binutils 2.21.1 and 2.22, gcc 4.6, 4.5 and 4.4. Compilation proceeds without an error. Interestingly enough, the nwnx modules compiled a couple months ago with one of these versions, run fine. Neither make nor gperf, not even glibc changed in the system since then.

I used to get dlopen errors for most of my plugins as you can see in my previous posts to this thread.
I now have a server running with almost all of the plugins working with no errors.

Just to show what plugins i have working.

NWNX2lib: Init
NWNX2lib: org SetString() at 81f41b4, new SetString() at b776e097
NWNX2lib: org GetObj() at 81f40bc, new GetObj() at b776e0be
* Parsing configuration...
NWN Extender v2.8-dev
(c) 2004 by the APS/NWNX Linux Conversion Group
(c) 2007-2010 by virusman and Acaos
Based on the Win32 version (c) 2003 by Ingmar Stieger (Papillon)
and Jeroen Broekhuizen
visit us at http://www.avlis.org